DG SPORTS Wide Hula Hoop with Massage Balls Double Magnetic Balls Exercise Fitness Workout Abdominal 8 Pcs Pipe Yellow Black This hula hoop has advanced massage effect, mainly training the whole body balance control. Detachable after assembly, easy to carry and storage. Great exercise tool: best for waist trimming and weight loss. Convenient to workout anytime and anywhere. This Hula Hoop comes with Massage Balls Double Magnetic Balls Exercise Fitness Workout 8 pcs